Tire tread and buttress



FIG. 1 is a perspective view of a tire tread and buttress showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is an enlarged fragmentary front elevational view thereof.

The pattern is understood to be repeated uniformly throughout the circumference of the tire tread and buttress.

The broken line showing of the tire sidewalls in all views of the drawing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tire tread and buttress, as shown and described. 